Neutrophil Leukocyte: Combustive Microbicidal Action and Chemiluminescence

Figure 2

Combination of two doublet multiplicity hydrogen atoms (H, shown on the left and right of the graphic) yields singlet multiplicity molecular hydrogen (H₂, shown in the center of the graphic). Multiplicity is defined as , where is the total spin number. Constructive overlap of the two antisymmetric 1s SOAOs of the H atoms yields the HOMO of H₂. The (1s) notation before indicates the atomic source of the molecular orbital. is the LUMO antibonding orbital ( indicates antibonding) of H₂. The energy differences in the figures are for illustration and not drawn to scale.